Customized Fetal Body Mass Index as a Better Predictive Marker for Neonatal Nutritional Status

<b>Background/Objectives:</b> The diagnosis of fetal nutritional status is of great importance for the accurate evaluation and monitoring of these pregnancies. The objective of the present study is to develop a model that allows for the prenatal assessment of fetal body mass index and to...

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Main Authors: Juan Jesús Fernández Alba, María Castillo Lara, José Manuel Jiménez Heras, Jose Diego Santotoribio, Rocío Fuentes Morales, Francisco José Rosa Rubio, Carmen González Macías
Format: Article
Language:English
Published: MDPI AG 2025-03-01
Series:Diagnostics
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Online Access:https://www.mdpi.com/2075-4418/15/7/877
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author Juan Jesús Fernández Alba
María Castillo Lara
José Manuel Jiménez Heras
Jose Diego Santotoribio
Rocío Fuentes Morales
Francisco José Rosa Rubio
Carmen González Macías
author_facet Juan Jesús Fernández Alba
María Castillo Lara
José Manuel Jiménez Heras
Jose Diego Santotoribio
Rocío Fuentes Morales
Francisco José Rosa Rubio
Carmen González Macías
author_sort Juan Jesús Fernández Alba
collection DOAJ
description <b>Background/Objectives:</b> The diagnosis of fetal nutritional status is of great importance for the accurate evaluation and monitoring of these pregnancies. The objective of the present study is to develop a model that allows for the prenatal assessment of fetal body mass index and to evaluate its diagnostic efficacy in predicting neonatal nutritional status. <b>Methods:</b> A retrospective cohort study was conducted to develop and evaluate a new model in the diagnosis of alterations in fetal nutritional status based on the customized fetal body mass index. By establishing the relationship between weight and length, we can calculate the fetal body mass index, which could correlate more effectively with nutritional status. <b>Results:</b> A total of 12,633 subjects were recruited, and 9499 were included in our study. Capacities to predict both neonatal malnourishment and overnutrition were calculated for each of the three methods analyzed (BMI, GROW, and IG21st). The receiver operating characteristic curve for each method was developed. The sensitivity and specificity for the assessment of malnutrition were 0.83 and 0.90, respectively. The area under the ROC curve of our method was 0.95 for malnutrition, while for IG21st and GROW, it was 0.80 and 0.79, respectively. <b>Conclusions:</b> This study demonstrates a superior diagnostic capacity for alterations in fetal and neonatal nutritional status of this new fetal BMI curve compared to the previously used fetal weight percentile curves.
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spelling doaj-art-229b4d2e06bd4b1ebc28cdb6c033f7d62025-08-20T03:06:16ZengMDPI AGDiagnostics2075-44182025-03-0115787710.3390/diagnostics15070877Customized Fetal Body Mass Index as a Better Predictive Marker for Neonatal Nutritional StatusJuan Jesús Fernández Alba0María Castillo Lara1José Manuel Jiménez Heras2Jose Diego Santotoribio3Rocío Fuentes Morales4Francisco José Rosa Rubio5Carmen González Macías6Department of Obstetrics and Gynaecology, University Hospital of Puerto Real, 11-510 Cadiz, SpainDepartment of Obstetrics and Gynaecology, University Hospital of Puerto Real, 11-510 Cadiz, SpainInstitute of Research and Innovation in Biomedical Sciences of the Province of Cadiz (INiBICA), 11-009 Cadiz, SpainInstitute of Research and Innovation in Biomedical Sciences of the Province of Cadiz (INiBICA), 11-009 Cadiz, SpainDepartment of Obstetrics and Gynaecology, University Hospital of Puerto Real, 11-510 Cadiz, SpainDepartment of Obstetrics and Gynaecology, University Hospital of Puerto Real, 11-510 Cadiz, SpainDepartment of Obstetrics and Gynaecology, University Hospital of Puerto Real, 11-510 Cadiz, Spain<b>Background/Objectives:</b> The diagnosis of fetal nutritional status is of great importance for the accurate evaluation and monitoring of these pregnancies. The objective of the present study is to develop a model that allows for the prenatal assessment of fetal body mass index and to evaluate its diagnostic efficacy in predicting neonatal nutritional status. <b>Methods:</b> A retrospective cohort study was conducted to develop and evaluate a new model in the diagnosis of alterations in fetal nutritional status based on the customized fetal body mass index. By establishing the relationship between weight and length, we can calculate the fetal body mass index, which could correlate more effectively with nutritional status. <b>Results:</b> A total of 12,633 subjects were recruited, and 9499 were included in our study. Capacities to predict both neonatal malnourishment and overnutrition were calculated for each of the three methods analyzed (BMI, GROW, and IG21st). The receiver operating characteristic curve for each method was developed. The sensitivity and specificity for the assessment of malnutrition were 0.83 and 0.90, respectively. The area under the ROC curve of our method was 0.95 for malnutrition, while for IG21st and GROW, it was 0.80 and 0.79, respectively. <b>Conclusions:</b> This study demonstrates a superior diagnostic capacity for alterations in fetal and neonatal nutritional status of this new fetal BMI curve compared to the previously used fetal weight percentile curves.https://www.mdpi.com/2075-4418/15/7/877fetal growthfetal body mass indexbirth weightneonatal nutritional statusfetal customized curvespredictive models
spellingShingle Juan Jesús Fernández Alba
María Castillo Lara
José Manuel Jiménez Heras
Jose Diego Santotoribio
Rocío Fuentes Morales
Francisco José Rosa Rubio
Carmen González Macías
Customized Fetal Body Mass Index as a Better Predictive Marker for Neonatal Nutritional Status
Diagnostics
fetal growth
fetal body mass index
birth weight
neonatal nutritional status
fetal customized curves
predictive models
title Customized Fetal Body Mass Index as a Better Predictive Marker for Neonatal Nutritional Status
title_full Customized Fetal Body Mass Index as a Better Predictive Marker for Neonatal Nutritional Status
title_fullStr Customized Fetal Body Mass Index as a Better Predictive Marker for Neonatal Nutritional Status
title_full_unstemmed Customized Fetal Body Mass Index as a Better Predictive Marker for Neonatal Nutritional Status
title_short Customized Fetal Body Mass Index as a Better Predictive Marker for Neonatal Nutritional Status
title_sort customized fetal body mass index as a better predictive marker for neonatal nutritional status
topic fetal growth
fetal body mass index
birth weight
neonatal nutritional status
fetal customized curves
predictive models
url https://www.mdpi.com/2075-4418/15/7/877
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